A Combined Annubar Flowmeter
An Annubar and combined technology, which is applied in the field of combined Annubar flowmeters, can solve the problems of heavy workload, inaccurate measurement results, small application range, etc., achieve the effect of convenient use and portability, and increase the application range
Active Publication Date: 2019-08-20
CHINA ACAD OF SAFETY SCI & TECH
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Problems solved by technology
[0004] The length of the detection rod of the existing Annubar flowmeter is fixed, so that the flowmeter is only suitable for a certain radial size section, and the scope of application is small
Moreover, the existing Annubar flowmeter has only one detection rod. If you want to obtain the flow velocity or flow rate of the entire section, you need to measure the flow velocity at different positions of the measured section separately to obtain a weighted average value to obtain the cross-sectional flow velocity. The disadvantages of the flowmeter include: (1) It is necessary to measure the flow velocity at different positions of the section one by one, which requires a large workload and a long measurement time; (2) the measured result is the average flow velocity in the section for a period of time, so it is impossible to accurately measure the flow velocity with a large change. (3) The placement direction of measuring points and detection rods is usually selected manually, and the manual error is large, which may lead to inaccurate measurement results
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Embodiment Construction
[0035] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but should not be used to limit the scope of the present invention.
[0036] In the description of the present invention, unless otherwise specified, "plurality" means two or more; unless otherwise specified, "notch-shaped" means a shape other than an even cross-section. The terms "top", "bottom", "left", "right", "inner", "outer", "top", "bottom", "front", "rear", "head", "tail", etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation or be configured in a specific orientation. and ope...
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The invention relates to the technical field of flow measurement, in particular to a combined type Annubar flowmeter. The combined type Annubar flowmeter comprises measurement bars and is characterized by further comprising a fixing support, the multiple measurement bars are arranged, are arranged in the fixing support and are arranged in the fixing support in a row, and the length of the measurement bars can be adjusted. According to the combined type Annubar flowmeter, the measurement bars have a plurality of length combinations, so that the length and the number of the measurement bars canbe reasonably adjusted according to the size of the section to be measured, so that the flowmeter can be suitable for various section sizes, and therefore the application range of the Annubar flowmeter is greatly widened; and in addition, the fixing support is arranged, the multiple measurement bars can be arranged in the fixing support and can be arranged in the fixing support in a row, so that the whole row of measurement bars can be arranged on the section to be measured during use, and the Annubar flowmeter can measure the flow of the whole section at a time.
Description
technical field [0001] The invention relates to the technical field of flow measurement, in particular to a combined Annubar flowmeter. Background technique [0002] Annubar flowmeter (also known as flute-shaped uniform velocity tube flowmeter) is a differential pressure flow measurement element developed based on the principle of pitot tube velocity measurement. It outputs a differential pressure signal and is used in conjunction with an instrument for measuring differential pressure. , can accurately measure the flow of various liquids and gases in circular pipes, rectangular pipes and other flow channels. Annubar flowmeters are widely used in power plants, petrochemicals, metallurgy, water treatment, fine chemicals and environmental protection industries. [0003] The Annubar flowmeter mainly includes a detection rod, an equal velocity tube and a flow display instrument. The detection rod is a double-row hollow metal tube inserted into the pipe or pipe mouth along the r...
Claims
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IPC IPC(8): G01F1/36
Inventor 史聪灵李建胥旋车洪磊何理石杰红伍彬彬赵晨
Owner CHINA ACAD OF SAFETY SCI & TECH